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Message-ID: <wvn5hh63omtqvs4e3jy7vfu7fvkikkzkhqbmcd7vdtmm7jta7s@qjagmjwle2z3>
Date: Mon, 12 Feb 2024 23:33:30 -0500
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Kees Cook <keescook@...omium.org>,
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Subject: Re: [PATCH v3 31/35] lib: add memory allocations report in show_mem()
On Mon, Feb 12, 2024 at 07:22:42PM -0500, Steven Rostedt wrote:
> On Mon, 12 Feb 2024 16:10:02 -0800
> Kees Cook <keescook@...omium.org> wrote:
>
> > > #endif
> > > +#ifdef CONFIG_MEM_ALLOC_PROFILING
> > > + {
> > > + struct seq_buf s;
> > > + char *buf = kmalloc(4096, GFP_ATOMIC);
> >
> > Why 4096? Maybe use PAGE_SIZE instead?
>
> Will it make a difference for architectures that don't have 4096 PAGE_SIZE?
> Like PowerPC which has PAGE_SIZE of anywhere between 4K to 256K!
it's just a string buffer
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